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Murexide

Murexide structure

CAS No:
3051-09-0
Formula:
C8H5N5O6.H3N
Chemical Name:
Murexide
Synonyms:
2,4,6(1H,3H,5H)-Pyrimidinetrione,5-[(hexahydro-2,4,6-trioxo-5-pyrimidinyl)imino]-,ammonium salt (1:1);Barbituric acid,5,5′-nitrilodi-,monoammonium salt;2,4,6(1H,3H,5H)-Pyrimidinetrione,5-[(hexahydro-2,4,6-trioxo-5-pyrimidinyl)imino]-,monoammonium salt;Murexide;Purpuric acid ammonium salt;Ammonium purpurate;Ammonium 5-(2,4,6-trioxoperhydropyrimidin-5-ylideneamino)barbiturate;134-02-1;410097-48-2;463929-80-8;1059626-26-4
Categories:
Inorganic Chemistry > Inorganic Salts

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Description

Bordeaux powder

5,5'-Nitrilodibarbituric acid ammonium derivative. Used as an indicator for complexometric titrations.

Murexide Basic Attributes

Molecular Weight：

284.19

Exact Mass：

284.050537

BRN：

3582175

EC Number：

221-266-6

UNII：

4W6L62S876

HScode：

29335995

Characteristics

PSA：

170

XLogP3：

-1.81120

Appearance：

Reddish-violet Solid

Density：

1.5756 (rough estimate)

Melting Point：

300 °C

Boiling Point：

480.8°C at 760 mmHg

Water Solubility：

H2O: Slightly soluble

Storage Conditions：

Storage temperature: no restrictions.

Safety Information

Transport codes：

NONH for all modes of transport

wgk germany：

hazard class code：

22-40

safety instructions：

24/25-22-36/37

Marks：

Stability/Shelf Life：

Stable at room temperature in closed containers under normal storage and handling conditions.

Drug Information

MeSH：

Substances used for the detection, identification, analysis, etc. of chemical, biological, or pathologic processes or conditions. Indicators are substances that change in physical appearance, e.g., color, at or approaching the endpoint of a chemical titration, e.g., on the passage between acidity and alkalinity. Reagents are substances used for the detection or determination of another substance by chemical or microscopical means, especially analysis. Types of reagents are precipitants, solvents, oxidizers, reducers, fluxes, and colorimetric reagents. (From Grant and Hackh's Chemical Dictionary, 5th ed, p301, p499) (See all compounds classified as Indicators and Reagents.)

MeSH Entry Terms：

Acid Ammonium Purpurate

Murexide Use and Manufacturing

Methods of Manufacturing

10g of chromium trioxide, 4g of water and 40g of glacial acetic acid were heated and dissolved, cooled to 30°C, and 16g of bartoic acid was slowly added in batches to control the reaction temperature of 45-50°C. After the addition was completed, it was incubated for half an hour at 50°C, left overnight, 10 g of glacial acetic acid was added, and the crystals were collected by filtration. Mix 4g of crystals with 8g of water to heat and dissolve, and filter out insolubles. The filtrate was transferred into ammonium acetate-glacial acetic acid solution to pass ammonia, crystals were precipitated, filtered and washed with boiling ethanol to obtain ammonium purpurate.

Uses

Indicator for complexometric titrations.

Computed Properties

Molecular Weight:284.19
Hydrogen Bond Donor Count:5
Hydrogen Bond Acceptor Count:7
Rotatable Bond Count:1
Exact Mass:284.05053200
Monoisotopic Mass:284.05053200
Topological Polar Surface Area:170
Heavy Atom Count:20
Complexity:508
Covalently-Bonded Unit Count:2
Compound Is Canonicalized:Yes

Material

Ammonium acetate

Ammonia

Nitric acid

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Guide of Murexide

Description
Basic Attributes
Characteristics
Safety Information
Drug Information
Use and Manufacturing
Computed Properties
Material
Recommended Suppliers
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Murexide

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